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Security Hardening with Ansible

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Ansible is an open-source automation tool developed and released by Michael DeHaan and others in 2012. DeHaan calls it a "general-purpose automation pipeline" (see Resources for a link to the article "Ansible's Architecture: Beyond Configuration Management"). Not only can it be used for automated configuration management, but it also excels at orchestration, provisioning of systems, zero-time rolling updates and application deployment.

Ansible can be used to keep all your systems configured exactly the way you want them, and if you have many identical systems, Ansible will ensure they stay identical. For Linux system administrators, Ansible is an indispensable tool in implementing and maintaining a strong security posture.